Percy was the son of Walter and Mary Smith who are recorded in army records to be of Albury End, however it would appear that Percy was born in Mortlake.
In the 1891 and 1901 census he was living in West Ham with his parents and is recorded in 1901 as
He was in the Mesopotamia Expeditionary Force with the 2nd Bn. Royal West Kents and probably arrived at Basra in February 1915. He may well have been killed at the siege of Kut.
After his death he was recorded as the son of Walter John Bert and Mary AnnS, of Albury End, Hadham, Herts.